Wiktionary
five-finger discount
n. (context idiomatic euphemistic English) theft or pilferage, typically of a small item; shoplifting.
Usage examples of "five-finger discount".
Any man who lived by himself and didn't take advantage of the five-finger discount was a damn fool, as far as he was concerned.
Lola had picked it up last year from an acquaintance who fenced for a haute couture shoplifting ring, and considered it worth every penny it had cost-a serious outlay of money even after the five-finger discount.